st: do2htm and grss

Dr. Mitchell with UCLA pointed out the useful do2htm.ado which
automates the creation of html files _with_ graphs. You merely prefix
graph commands in a do file with "grss", then run your do file with
"do2htm yourfile.do". This is a fine addition, making sharing analyses
with colleagues via Apple's iDisk (or other internet disk service)
rapid and easy! Really outstanding.